(19)

(11)

EP 3 724 258 A1

(12)

(43) Date of publication: 21.10.2020 Bulletin 2020/43 (21) Application number: 18836596.9 (22) Date of filing: 15.12.2018

(51) International Patent Classification (IPC):  C08G 75/14(2006.01) C25B 1/00(2006.01) C25B 11/04(2006.01) (86) International application number: PCT/EP2018/000562 (87) International publication number: WO 2019/115012 (20.06.2019 Gazette 2019/25)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 15.12.2017 DE 102017011653 (71) Applicant: CFSO GmbH 82538 Geretsried (DE)	(72) Inventors: TAYE SALAMI, Oyewole 82515 Wolfratshausen (DE) OBENLAND, Sigrid 80638 Münich (DE) FISCHER, Christian 35415 Pohlheim (DE) SCHLÜCKER, Thorben 85521 Ottobrunn (DE) WALTER, Andreas 82387 Antdorf (DE) (74) Representative: Obenland, Sigrid  Pegnitzstrasse 7 80638 München 80638 München (DE)